What is the CVSS score of CVE-2021-3565?

CVE-2021-3565 has a CVSS 3.1 base score of 5.9 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 1.3%.

Is there a patch available for CVE-2021-3565?

Yes, a patch is available for CVE-2021-3565. Update the affected software to the latest version immediately.

Tpm2 Tools CVE-2021-3565

MEDIUM

Improper Initialization (CWE-665)

2021-06-04 secalert@redhat.com

Information Disclosure Tpm2 Tools Enterprise Linux Fedora

5.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.9 MEDIUM

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Jun 04, 2021 - 12:15 nvd

MEDIUM 5.9

DescriptionNVD

A flaw was found in tpm2-tools in versions before 5.1.1 and before 4.3.2. tpm2_import used a fixed AES key for the inner wrapper, potentially allowing a MITM attacker to unwrap the inner portion and reveal the key being imported. The highest threat from this vulnerability is to data confidentiality.

AnalysisAI

A flaw was found in tpm2-tools in versions before 5.1.1 and before 4.3.2. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required.

Technical ContextAI

This vulnerability is classified under CWE-665. A flaw was found in tpm2-tools in versions before 5.1.1 and before 4.3.2. tpm2_import used a fixed AES key for the inner wrapper, potentially allowing a MITM attacker to unwrap the inner portion and reveal the key being imported. The highest threat from this vulnerability is to data confidentiality. Affected products include: Tpm2-Tools Project Tpm2-Tools, Redhat Enterprise Linux, Fedoraproject Fedora. Version information: before 5.1.1.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.